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Radiant|Lab Grown|IGI

1.69ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG618477171

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG618477171

Diamond specifications and retailer prices

From $282 NZD
$159 USD
As of October 27, 2026
Save $2,433 NZD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,715 NZD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.69ct lab-grown radiant diamond

This 1.69ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG618477171 or 618477171. Listed at 10 retailers as of October 27, 2026, with prices from $282 to $2,715, a $2,433 spread on the same certified stone. Do Amore Diamonds lists it at $2,715. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.69
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618477171
Dimensions8.35 × 5.86 × 3.97 mm
L/W Ratio1.42
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.35 mm5.86 mm1.69 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618477171
Side View
Table 65.0%Crown 43.7°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $2,715 NZD|Low: $282 NZD|High: $2,874 NZD|Avg: $1,278 NZD|-5.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 8$282 NZD
Retailer 6$328 NZD
Retailer 13$335 NZD
Retailer 10$637 NZD
Retailer 3$757 NZD
Retailer 4$1,111 NZD
Retailer 7$1,191 NZD
Retailer 9$1,246 NZD
Retailer 11$1,289 NZD
Retailer 5$1,685 NZD
Retailer 2$1,821 NZD
Retailer 12$1,916 NZD
Do Amore Diamonds$2,715 NZD

21 data points across 13 retailers

10 retailers$282 NZD to $2,715 NZD

A
Cheapest Retailer
-
$282 NZD
$159 USD
A
Retailer 2
-
$328 NZD
$185 USD
View
A
Retailer 3
-
$335 NZD
$189 USD
View
Final sale: no returns
B+
Retailer 4
-
$637 NZD
$359 USD
View
B+
Retailer 5
-
$1,191 NZD
$671 USD
View
B+
Retailer 6
-
$1,246 NZD
$702 USD
View
B+
Retailer 7
-
$1,289 NZD
$727 USD
View
B+
Retailer 8
-
$1,821 NZD
£808 GBP
View
B
Retailer 9
-
$1,916 NZD
$1,080 USD
View
Most Expensive
B
Do Amore Diamonds
27-F947BC3DD · Oct 30
$2,715 NZD
$1,530 USD
View
9 more retailers have this diamond
Prices start from $282 NZDSave up to $2,433 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.69ct Radiant
$282 NZD